Box front for looms



Aug. 18, 1936. w, H, BAHAN 2,051,020

130x FRONT FOR LOOMS Filed April 30, 1934 WILL/QM H BHHHN Qwuwwto bPatented Aug. 18, 1936 UNETED STATES PATENT @FFIQE BOX FRONT Foa LOOMSWilliam H. Bahan, Greenville, S. 0.

Application April 30, 1934, Serial- No. 723,204

2 Claims. (01. 130-243).

This invention relates to an improved box front for looms of the batterytype and especially to the provision of a box front which will preventundue breakage of the same and also will allow bobbins which aretransferred too late to pass through the mechanism of the loom withoutundue breakage of the parts.

It has been the experience of many loom operators to have the bobbinsupport engage the inner surface of the box front of a loom and to thusresult in the breakage of either the box front or other portions of thebattery or transferring mechanism.

It is an object of this invention to provide an improved box front forlooms which is so constructed as to prevent the bobbin support fromengaging the box. front and breaking the same or other parts of the loomin the transferring of a bobbin from the magazine to the shuttle.

It is also an object. of this invention to provide an improved box frontfor looms which will not be engaged by the bobbin support in thetransferring operation to break either the box front or other parts ofthe loom, and at the same time to provide a box front which will allowfarther downward movement of the bobbin support when a bobbin istransferred late and thus allow the bobbin to be passed along the outerside of the box front and between the outer surface of the box front andthe fixed bobbin guide and thus preventing breakage of parts upon suchfalse transfer of bobbins.

Some of the objects of the invention having been stated, other objectswill appear as the description proceeds, when taken in connection withthe accompanying drawing, in which:

Figure 1 is a side elevation and partial section of a portion of afilling replenishing mechanism with my invention applied thereto,

Figure 2 is a sectional plan view taken along line 2-2 in Figure 1;

Figure 3 is an enlarged elevation of the lefthand portion of Figure 2;

Figure 4 is an isometric view of a portion of one of the guides showingthe depressed portion in the upper surface thereof;

Figure 5 is a perspective view of one of the collars used in connectionwith the front guide 3| for adjusting the width of the shuttle box.

Referring more particularly to the drawing the numeral l denotes a loomframe upon which is mounted a hopper stand H which, in turn, hasrotatably mounted therein a hopper l2. This hopper is given a step bystep rotative movement to present a bobbin l3 to position for transferafter each replenishing operation. The. bobbins |3' are mounted inhopper l2 and are transferred from the hopper to. the shuttle by atransfer arm M which is pivotally mounted on a stud l mounted upon theloom frame. 5

Extending downwardly from the hub portion of the transfer arm I41 is thearm IE to which is pivotally connected at ll. the dog I 8 which isadapted to be engaged by the'bunter I9 on the lay 2.9 as the lattermoves forwardly when the 10 replenishing operation is to be effected.Lay 20 is pivotally mounted for oscillation by swords (not shown) on asuitable rocker shaft. (not shown) ,and is adapted to oscillate back andforth beneath the hopper in a Well known fashion, as the fabric iswoven. The dog l8 may be under the control of a train of mechanism whichindicates the condition of the filling in the shuttle, but as suchmechanism forms no part of the present invention, it is not herein shownand described.

The transfer arm I4 has extending therefrom, laterally and thendownwardly an arm 2| which engages the outer or tip end portion of thebobbin 3 during the transferring operation.

Secured in fixed position to the shaft I5 is an arm 22 on which ispivotally and resiliently mounted a tip support 23, which supports thetip end of the bobbin prior to its transfer into the shuttle. Forsupporting the butt end of the bobbin in the same position, a bobbinsupport 25 is pivotally mounted on a bolt 26, said bolt 26 being securedin the lower portion of hopper stand I I.

A torsion spring 21 has one end secured in bolt 26 and the other endengaging support 25 causing the support to resiliently support the buttend of the bobbin prior to its transfer into the shuttle.

A guide 28 is secured on the loom frame for assisting the bobbin support25 in guiding the bobbins into the shuttle.

The structure described thus far is conventional and it is with astructure of this type that my invention is associated. Lay 20 has inthe upper end thereof a shuttle box which is comprised of a suitablebase 29 and guides 30 and 3| in which a suitable shuttle 32 is adaptedto enter and be expelled by picker stick 33. Disposed between the guides30 and 3| and the shuttle 32 are lining strips 35 and 36, which areusually made of leather, to prevent excessive wear on the shuttle. Thepart 3| and associated parts comprise my invention.

It is seen that a sloping cut-away portion 3'! is provided in the uppersurface of box front 3| and that the upper edge of portion 31 isslightly below the top of strip 35. In operation of the looms with theconventional box front having no depression in the upper side thereof,it has been found that in case there was a late transfer of the bobbinthat the bobbin support often was not allowed to move downwardly farenough to allow the bobbin to pass betweenthe support 25 and the guide28 and resulting in breakage of parts. The cut-away portion 31 allowsfurther downward movement of the bobbin support 25 and thus allows thelate transferred bobbin to fall to the floor. bin support 25 is beveledoff with its upper edge slightly below the upper edge of the leatherlining 36 the tip of the bobbin support cannot engage the upper edge ofthe guide but will contact the upper edge of the lining 36 which, inturn, will guide the leading edge of the support over depressed surface31 as the lay 20 is oscillated to the right in Figure 1. As has beendescribed, the conventional lay 20 is pivoted on a suitable rocker shaftbelow, consequently, the upper edge of the box front describes an arc ofa circle and by having a beveled portion the bobbin support is not movedupwardly by the outer edge of the box front 3| and thus the bobbin whichis transferred late and misses the shuttle is allowed to pass betweenthe bobbin guide and the bobbin support. One of the'chief advantages ofthe depression 31 in the box front 3| is that breakage of the member 3|is prevented. It often happens in conventional box fronts, that as thebobbin is transferred, the tip of the bobbin support 25 will not havereceded sufliciently to miss the inner edge of the box front, causingthe tip of the bobbin support to engage the inner sidewall of the boxfront 3| and break either the box front or other portions'of the loom,such as the hopper.

Since the upper surface opposite the bob-r ing the position of the boxfront 3| with relation to guide 30 have been provided. By referring toFigures 1, 2 and 3 it is seen that box 3| has suitable lugs 40 and 4|integral therewith which have a hole in the center thereof in which isadapted to be inserted the restricted portion 42 of collar 43 as shownin Figure 5. Collar 43 has an eccentric hole 44 therein which ispenetrated by stud bolts 45 and 46, said bolts being threadably securedin base member 29. It is evident that when a tool is inserted in one ofthe holes 43a to turn collar 43, that the box front 3| can be adjustedwith relation to guide 30.

V In thedrawing and specification there has been set forth a preferredembodiment of the invention, and although specific terms are employed,they are used in a generic and descriptive sense only and notforpurposes of limitation, the scope said shuttle box, said box fronthaving a flexible lining and said box front having a depression in theupper edge thereof disposed below the edge of the upper lining andcoinciding with the bobbin support as the lay is oscillated andpreventing engagement of the box'front byv the bobbin support.

2. A battery loom having a bobbin support and a shuttle box providedwith a box front, a lining for said box front, said box front having adepression in the upper edge thereof disposed in the same vertical planeas the bobbin support whereby upon oscillation of the shuttle box duringtransfer of a bobbin into the shuttle box the bobbin support isprevented from engaging the inner sidewall of the box front.

WILLIAM H. BAHAN.

